Detroit 14L Pressure Relief Valve and Lose of Prime

Hello community,

As the title states these are the few issues I'm currently having.
I've recently had an overhaul on my series 60 14L and only put a few miles on it from the shop to the house and is currently sitting.
Every so often I'd start the truck and let it idle for a bit but I've experienced a couple minor issues.

The truck seems to loose prime and wont start on its own but will with starting fluid. I've replaced the Fuel Check Valve to no avail, issue still stands.

In addition to that while the truck is idling it's not purging air from the dryer before and after replacing the dryer and governor. I pulled the line from the compressor to the dryer and felt a good amount of pressure and no oil shooting out.

Lastly once the truck is turned off I hear an air leak coming from the relief valve on top of the compressor the one next to the unloader valve and according to Bendix this is what is says verbatim from the manual.

"All Bendix® BA-921® compressors are equipped with a safety valve to protect the compressor head in the event of, for example, a discharge line blockage downstream of the compressor. Excessive air pressure will cause the safety valve to unseat, release air pressure and give an audible alert to the operator. The safety valve is installed in the cylinder head safety valve port, directly connected to the cylinder head discharge port."

I checked the lines and it doesn't seem like anything is clogged and not trying to be a pessimist and believe my compressor is going bad I thought I might ask around here.

Any and all help is appreciated, Thanks in advance.

 

I was recently told something similar,
I’d have to see if I can get access to a compressor. I appreciate your input.